<!DOCTYPE html>
<html>

    <head>
        <meta charset="utf-8" />
        <title>第一个网页</title>
    </head>
    <body>
        <div class="header">
            <div class="logo">

                <h1 align="center" ></h1>
                <h3 align="center"><a href="https://asdcsa.github.io/oscdf/">
                    <img src="0.jpg" width="500" height="500">

                </a></h3>
            <h2 align="center">请点击图片</h2>
            </div>
        </div>
    </body>
</html>